331977 Turner, F. H. (1968). Shell technology. London : Concrete Publications.
Lua i Stíl Chicago (17ú heag.)331977 Turner, F. H. Shell Technology. London : Concrete Publications, 1968.
Lua MLA (9ú heag.)331977 Turner, F. H. Shell Technology. London : Concrete Publications, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.